How many times have we seen high level players change positions in College from High School? I can think of 5 right off hand:
Devery Henderson (Opelousas/LSU). Played tailback in High School and went on to be a solid WR at LSU.
Lucas Taylor (Carencro/Tennessee). Qb/WR. Solid Junior season at uT. Great QB in H.S.
Kyle Kipps (Comeaux/LSU): TE/DE. Big transition but did well.
Damien James (Carencro/LSU). QB/DB. Athletic, but undersized to play QB at LSU.
Josh Reed (Rayne/LSU): Tailback/WR. Went on to play WR and win the Biletnikoff award.